baber/WOPTO huggingface dataset:
Patent GB-1461058-A (GB)
Title: Indolyl monoazo dyestuffs
IPC: C09B43/02
Filed: 1975-05-20
Abstract: 1461058 Azo dyes containing indole residues BAYER AG 20 May 1975 [26 June 1974] 21518/75 Heading C4P The invention comprises dyes of Formula I where D is the radical of an aromatic-carbocyclic diazo component, X is -OH, -NHSO 2 R 7 , -N(R 8 )alkylene OSO 3 H, -N(R 8 )alkylene SO 3 H, -N(R 8 )arylene SO 3 H, -N(R 8 )arylene CH 2 SO 3 H or -N(R 8 ) arylene SO 2 NHSO 2 R 7 , R 1  and R 2  are H, alkyl, aryl, aralkyl, cycloalkyl or carbalkoxy, at least one of R 1  and R 2  being H, R 3  is H or alkyl, each R 4  independently is halogen, CN, alkyl, alkoxy or SO 3 H, R 5  is alkyl or aryl, R 6  is H, acyl or SO 3 H, R 7  is alkyl, aryl or dialkylamine, R 8  is H or alkyl and n and m are each 0, 1 or 2, provided that the total number of acid groups i.e. -SO 3 H, -OSO 3 H and -SO 2 NHSO 2 - per molecule is 1 or 2, and any alkyl or aryl moieties or groups may be substituted. The dyes of Formula I may be prepared by azo coupling, mixtures being obtained by using a mixture of coupling components, or by reacting a dye of formula with an epoxide of formula and subsequently optionally esterifying the dye obtained in which R 6  is OH. The dyes of Formula I may be used to dye or print synthetic polyamide materials and give yellow and orange shades.
Patent GB-758158-A (GB)
Title: Improvements in the purification of wood pulp
IPC: D21C9/08
Filed: 1954-07-23
Abstract: Wood pulp is refined by first chlorinating, then treating with alkali solution below its boiling-point and finally treating the pulp with alkali solution at a temperature above that of the first alkali treatment and at least 90 DEG  C.  The pulp may be given a preliminary treatment with alkali and washed, before the chlorination, also it may be bleached between treatment in the two alkali baths or after the second alkali treatment, e.g. with hypochlorite, chlorite, chlorine dioxide or other bleaching agent. The two-stage alkali treatment gives a pulp which in sheet form is softer and more easily shredded than pulp which has been subjected only to the second stage alkali treatment.  Suitable alkali baths contain 2-18 per cent caustic soda solution used at 0-100 DEG C. for the first bath and 1.5-6 per cent caustic soda solution used at 90 DEG  C. or upwards for the second bath.  Liquor which has been used in the first bath may be diluted and used in the second bath.  In an example, sulphite pulp is first treated with 2 per cent of its weight of chlorine at 10 DEG  C. for 10 minutes in an aqueous slurry, washed and drained, treated with a 6 per cent caustic soda solution at 20 DEG  C. for 15 minutes, then diluted with water to reduce the caustic soda to 4 per cent, heated to 125 DEG  C. in 20 minutes, kept at that temperature for a further 30 minutes and finally bleached and formed into a continuous sheet.
Patent GB-531510-A (GB)
Title: Improvements in rolling mills
IPC: B21B31/26
Filed: 1939-07-25
Abstract: 531,510. Roller presses for paste-board &c. GLEISSNER, P. July 25, 1939, No. 21560. Convention date, Aug. 6, 1938. [Class 96] [Also in Groups XXII, II and V] In roller presses with closed housings for paste-board &c., the lower roll is adjusted to an inclined position with relation to the upper roll so that an even bearing is obtained in spite of deflection under the rolling pressure. The bearing 5a is supported on a slide surface 10 and is adjusted laterally by an eccentric 9 engaging a slot in the bearing. The roll journals are spherical to permit the inclination. In a modification the offset is effected by a screw and nut.
Patent GB-291645-A (GB)
Title: Improvements in or relating to sound reproducing devices such as loud speakers
IPC: H04R7/12
Filed: 1927-08-16
Abstract: 291,645. Welch, A. P. Aug. 16, 1927. Diaphragms; loud - speakers. - The conical diaphragm a of a soundreproducing instrument, such as a loud-speaker, has a second cone b of smaller diameter and different angle secured thereto so as to form a double cone at the central portion with an intermediate hollow space c. The base of the cone b is preferably arranged to meet the main diaphragm a at a position which approximately corresponds with the centre of gravity of the whole device. Modified constructions are described in which the cone b is arranged on the inside of the cone a and in which a pair of auxiliary cones are provided one on each side of the main diaphragm. The compound diaphragm is supported by means of lugs h secured to the convex side thereof and fixed by set screws to brackets i mounted on the back j of the casing k.
Patent GB-645054-A (GB)
Title: Process and apparatus for the partial or complete rendering to powder of cereal grains
IPC: B02C9/00
Filed: 1946-07-19
Abstract: 645,054. Grinding-mills. GRUBBEN, E. July 19, 1946, No. 21601. Convention date. July 26, 1945. [Class 59] [Also in Group I] Grain is wholly or partially reduced to powder in an annular abrasive cell comprising two concentric circular walls 1, 2 joined by perforated walls 8 and rotated in a central shaft 4 by a pulley 5 at an increasing speed. A suction or blowing means (not shown) causes a gaseous current to traverse the cell which drives the powdered products towards the collector.
Patent GB-1348465-A (GB)
Title: Method and device for manufacture of highdensity nonmetallic  substance by phase conversion
IPC: C04B35/5831
Filed: 1972-05-09
Abstract: 1348465 High pressure apparatus SHOWA DENKO KK and NIPPON OILS & FATS CO Ltd 9 May 1972 [18 May 1971] 21616/72 Heading B1X [Also in Division C1] A method for the manufacture of a highdensity non-metallic substance by phase conversion comprises packing a powdered non- metallic substance 16 of the kind capable of voluminal contraction upon high-density phase conversion in a metallic cylinder 12 having a metallic bar 14 disposed in the axial direction within the cavity thereof and detonating an explosive placed around the periphery of the metallic cylinder thereby exerting impulses on the metallic cylinder. In examples boron nitride is converted to the wurtzite structure and graphite is converted to diamond. Powdered iron, copper, titanium, nickel, or refractory borides, carbides, oxides or nitrious may be added to the charge.
Patent GB-137352-A (GB)
Title: Automatic temperature control for electric irons
IPC: D06F75/26
Filed: 1918-12-24
Abstract: 137,352. Goldsbrough, S. L. Dec. 24, 1918. Electric hand-irons. - The temperature is controlled by a thermostat comprising an expansible element, such as a bi-metallic strip 12, Fig. 1, adapted to engage, through the medium of a link 15 and a lever 16, an adjustable stop 48 and thereby to operate through suitable link mechanism the arm 45 of a switch having a snap action. No movement of the link mechanism or switch occurs until the stop 48 is engaged by the lever 16, the stop thus determining the temperature to which the iron may be heated. The link mechanism is arranged in a casing 19 at the rear of the iron and consists of a slidable rod 22 on which the stop 48 is adjustable, a bell-crank lever with short and long arms 23, 26, a link 27, and a second bellcrank-lever 28, 30, and a spring-controlled slidable rod 31 having a slot through which passes a pivoted lever 35 directly actuating the switch arm 45. A spring 38 is connected to the lower end of the lever 35 so that a quick movement is given to the switch arm as the lever 35 passes to one side or other of its central position. The spring 32 attached to the rod 31 causes the circuit to be completed again as the temperature falls, and the stop 48 preferably has a knob projecting through a slot in the casing 19 for convenience in adjustment.
Patent GB-577928-A (GB)
Title: Improvements in electric switches of the push- or pull-operated type
IPC: H01H15/18
Filed: 1944-11-06
Abstract: 577,928. Snap-action switches ; switch cases. MARSTON, G. S., and STATTER & CO., Ltd., J. G. Nov. 6, 1944, No. 21743. [Class 38 (v)] A snap-action switch of the kind in which a rod 1 having oppositely coned parts 2 cooperating with toroidal springs 3c housed in contactcarrying annuli 3 in such a way that, upon axial movement of the rod, the springs are stretched and then resume their normal size, thus causing the annulus 3 to bridge contacts '19, is arranged in a sectional casing. The arrangement is such that a variety of switches for different applications may be built up from a minimum number of standard parts. For a double pole switch as shown, the casing consists of a base 4, a cover 15, two body parts 9 and three connecting members 18, the contacts 19, carried on strips 20, being secured in recesses 14 in body parts 9. In a single pole switch, not shown, one each of the connecting parts and the body parts, with the corresponding contacts 19, is omitted.
Patent GB-1400833-A (GB)
Title: Rotary electric switches
IPC: H01H19/10
Filed: 1972-05-10
Abstract: 1400833 Inert switches N S F Ltd 10 May 1973 [10 May 1972] 21803/72 Heading H1N A rotary electric switch comprises a stator assembly including two generally annular, axially spaced-apart insulating members 11, 12 carrying at least two mutually angularly spaced pairs of fixed contacts 15, the contacts of each pair presenting mutually and axially aligned contact-making portions 15a upon the inner peripheries of members 11 and 12, and a rotor assembly 13 including a movable contact 16 spring biased radially outwardly in bridging relation to said pair of fixed contacts, wherein the inner periphery of each of said members 11, 12 is provided with an integral projection 14a extending radially inwards between, but angularly spaced from, each two of said contactmaking portions 15a to provide a support surface for the contact 16 during movement thereof. The angular spacing D of projections 14a from adjacent contacts is sufficient to prevent tracking but small enough for smooth rotation of the rotor, which is axially located by periperal ribs 13k received between the stator members 11, 12. The stator members are preferably of moulded diallylphthalate, and the rotor body comprises two interfitting parts, preferably of glass-filled nylon. Tubular spacers 14d (and 12a, Fig. 3, not shown) integral with the stator members, ensure correct axial spacing. Several pairs of the members 11, 12 may be assembled on support rods (27, Fig. 5, not shown) passing through the spacers 14d (12a), with separate tubular spacers (30) between the pairs if desired, the rotors 13 being operated by a common shaft (28). The rotor 13 may carry four contacts 16 (as shown) and the stator member 12 may have fixed contacts (25, Fig. 4, not shown) which extend over the angle of three contacts 15 on member 11, thereby forming a four-pole three-way switch. Projections (24a) corresponding to projections 14a are provided between contacts (25).
Patent GB-949234-A (GB)
Title: Improvements in or relating to pistons for hydraulic pumps
IPC: F16J1/22
Filed: 1961-06-16
Abstract: 949,234. Connecting-rods ; pistons. GESELLSCHAFT FUR LINDES EISMASCHINEN A.G. June 16, 1961 [June 18, 1960], No. 21831/61. Heading F2T. [Also in Division F1] A pump piston has a porous insert, e.g. of sintered metal, located in a lubricating passage between the piston crown and the bearing surfaces of a connecting rod ball head and the piston. In the embodiment of Fig. 2, the insert 5 constitutes the piston bearing surface and is biased against the connecting rod head by a spring 11, a sealing ring 6 being provided. In the embodiment of Fig. 6, the insert 21 is spring-loaded and slidable to reduce concussion. In other embodiments the insert is fixed in the piston.
Patent GB-886912-A (GB)
Title: Improvements relating to circular settling tanks
Inventor: WISBEY RONALD BERTRAM
IPC: B01D21/24
Filed: 1960-06-22
Abstract: 886,912. Gravity-separation apparatus. NORSTEL & TEMPLEWOOD HAWKSLEY Ltd. June 22, 1960, No. 21858/60. Class 46. In Fig. 2 a serum scraper blade 1 hinged for limited vertical movement to a rotating frame B has just passed over a hopper 3, slid down a ramp 21, and dropped to its normal position. Fig. 3 (looking inwards), shows it at an earlier stage where it is just about to traverse the hopper on members 11, Fig. 2. Shortly after the Fig. 3 position a roller 4b on a lever 4 (pivoted to the frame B) engages an arm 5 secured to a shaft 5a journalled in a bracket 12 projecting from the hopper 3. The shaft 5a also carries arms 6 bearing rollers 6a which on rotation of the shaft 5a raise a box 2 about pivots 2a on the hopper 3, so as to discharge the liquid in the box down the hopper, washing away scum. Subsequently the roller 4b rides up over the end of arm 5, allowing the box to sink back again, filling with liquid through an aperture 2c as it does so, until it rests on bracket 12 once more (see Fig. 3). Downward movement of the scraper blade 1 is limited by a stop 10, Fig. 3, which engages links 1a. The blade 1 may scrape the inner wall of the tank.
Patent GB-218631-A (GB)
Abstract: 218,631. British Thomson-Houston Co., Ltd., (Assignees of Simmons, A. H.).. July 2, 1923, [Convention date]. Automatic circuit-breakers.-An electric percolator is provided with a thermal cut-out fitted with a re-set shaft 37 extending through the base of the vessel and having an offset member 39 co-operating with the cut-out whereby the heating circuit may be closed by turning the shaft. The heating element comprises a resistance 12' wound on a lava support 13 contained in a. casing 15 to which a bimetallic element 17 issecured. The end 18 of the element 17 normally engages the end 36 of the pivoted latch 32 to hold the blade 26 in engagement with the contacts 29, 30, Fig. 2. The spring 31 opens the switch when the element 17 expands to release the latch 32. When the element 17 regains its original position the switch is re-set by turning the shaft 37 by means of the handle 40, the offset member 39 engaging the lug 35 on the blade 26, the latter being pivoted at 28.
Patent GB-218662-A (GB)
Abstract: 218,662. Distilleries des Deux-SÞvres, (formerly Soc. Ricard, Allenet, et Cie). July 6, 1923, [Convention date]. Alcoholic liquids, distilling.-In dehydrating alcohol by distillation in presence of an added liquid as described in Specification 211,454, a mixture of two liquids, for example, a mixture of benzene and of gasoline boiling at about 100‹ C. is made use of. The Specification as open to inspection under Sect. 91 (3) (a) describes also that when a single liquid is used, water is added to the distillate to effect, when ethyl acetate is used as the added liquid, a separation into two layers, and, when gasoline is used as added liquid, a more complete separation of gasoline from the lower layer- This subject-matter does not appear in the Specification as accepted.
Patent GB-899716-A (GB)
Title: Improvements in or relating to the production of epoxy alcohols
Filed: 1960-06-23
Abstract: An epoxy alcohol is prepared by reacting under substantially anhydrous conditions an epoxy alkanol and hydrogen at elevated hydrogen pressure and at a temperature below 200 DEG C. in the presence of copper chromite as catalyst, preferably containing at least 40% by weight of copper oxide.  The catalyst may be used as a fine powder, as pellets or supported on kieselguhr, silica gel or diatomaceous earth.  The catalyst should be present in an amount of at least 5% by weight, preferably 10 to 30%, based on the epoxy alkanol.  The preferred temperature range is between 70 DEG C. and 125 DEG C., and preferred hydrogen pressure between 36 and 99 atmospheres.  The reaction is preferably effected in an inert solvent for both epoxy alkanol and epoxy alcohol, such as saturated alcohols and ethers, of chlorinated solvents, tetrahydrofuran being most suitable.  Examples describe the preparation of glycidol from glycidaldehyde.  The latter may be replaced by 2,3-epoxybutanal, 3,4-epoxypentanal, 2,3,4,5-diepoxyhexanal, 2-methyl-3,4-epoxybutanal and 1,2-epoxyhexan-3-al.  Specification 556,906 is referred to.
Patent GB-763521-A (GB)
Title: Improvements in sliver can packing devices
IPC: B65H54/84
Filed: 1954-07-28
Abstract: 763,521. Packaging sliver. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd. June 15, 1955 [July 28,.1954], No. 22013/54. Class 94(1). A device for compressing sliver as it is fed into a can comprises a weighted head 1 carried by a rod 2 which passes through a sleeve 6 secured to a vertically oscillating arm 7, a collar 12 on the rod being urged downwardly by a spring 11 against a catch member 10 of known type which allows upward movement of the rod relative to the sleeve to allow the head to rise as slives accumulates in the can, but operates with a wedging action to prevent relative movement in the opposite direction. The upper end of the rod carries a piston fitted with a cup washer 3 slidable in an air cylinder 5 formed with res. tricted air passages 8 and 9 above and below the media] position of the piston, the arrangement forming an air dashpot which controls the descent of the head when the catch member is released at the end of the packaging operation.
Patent GB-1260168-A (GB)
Title: Improvements relating to differential gear for motor vehicles
Inventor: COLOTTI VALERIO
Filed: 1969-03-18
Abstract: 1,260,168. Differential gearing. V. COLOTTI. 18 March, 1969, No. 22054/69. Heading F2D. A limited slip differential gearing comprises a crown gear 1 fixed to a housing coaxial with a three-armed carrier 7 having planet gears 7 meshing with output bevel gears 9 to each of which is fixed (e.g. by splines) a clutch disc 4 adjacent a clutch disc 5 fixed (e.g. by splines) to the housing towards which it is biased by helical compression springs 3 in pockets in end plates 2 of the housing.
Patent GB-601622-A (GB)
Title: Means for removing screwed stoppers from bottles
IPC: B67B7/18
Filed: 1945-08-28
Abstract: 601,622. Unscrewing screw stoppers. MURRAY, W. Aug. 28, 1945, No. 22064. [Class 83 (iii)] Means for unscrewing screwed stoppers and for removing them from bottles, wherein a rotary device such as a rubber pad 8 is adapted to descend to engage the stopper and drive it with an unscrewing motion, and a number of grippers or jaws is provided, descending with said device to engage the stopper laterally as the device approaches the stopper and to lift the stopper from the bottle, are characterised in that a plunger or feeler 3 extending through and protruding from the pad 8 is displaced axially relative thereto by engagement with the stopper, the relative movement causing the grippers to engage the stopper head. Upon the rising of the device the stopper is lifted from the bottle, and stop means 13 are provided to arrest the rising movement of the feeler 3 before the pad 8 comes to rest, the consequent relative movement between the feeler 3 and . pad 8 releasing the grippers and leaving the feeler protruding from the pad. The grippers may, as shown in Fig. 1, constitute spring blades 11 carried by bell crank levers 9 and adapted to pass below the head of the stopper, alternatively they may be arranged to grip the edge. The shaft 1 carrying the unscrewing device is belt-driven by a pulley 17, Fig. 4, and is raised and lowered by means of a pedal 21. As the shaft 1 rises after the unscrewing operation, the upper end of a rod 2 carrying the feeler 3 engages a stop 13 causing a spring 14 to disengage a groove 15, and blades 11 to release the stopper which drops into an inclined shoot 26, Fig. 4, the upper end of which is moved beneath the unscrewing device as the latter rises. Alternatively, the unscrewing device may be movable laterally so as to bring the stopper over a fixed hopper or shoot before releasing it. The unscrewing device may be applied to suspended machines for operating on bottles in cases moving on a conveyer.
Patent GB-1187655-A (GB)
Title: Apparatus for Clamping a Printing Plate onto a Cylinder
IPC: B41F27/10
Filed: 1967-05-12
Abstract: 1,187,655. Printing surfaces. MASCHINENFABRIK WINKLER, FALLERT & CO. A.G. 12 May, 1967 [20 May, 1966], No. 22127/67. Heading B6C. A clamping device for stereotype plates 1 on a cylinder 3 comprises hooks 5, 6 having tongues 7, 8 which engage in pockets 2 in the underside of the plate 1, the hooks being pivotally and slidably mounted on pins 25 carried in bushes 10, 11 fixed to the cylinder 3. The plate I is formed with stepped-down portions 18, 19 along its longitudinal edges, which fit into recesses 20, 21 in clamping bars 22, 23. The plate 1 is clamped and tensioned by the hooks under the action of cam surfaces on a spindle 17, through links 13, 14 and 15, 16. In operation, rotation of the spindle 17 firstly slides the hooks 5, 6 outwardly on the pins 25 into the pockets 2 and then pivots the hooks about the pins so that the tongues 7, 8 engage the sides of the recesses and tension the plate. A second plate, longitudinally adjacent the plate 1, is clamped by similar hooks operated in a similar manner by a second spindle (27), Fig. 2 (not shown), which is connected to a spindle 29 located coaxially within the spindle 17. The spindles are rotated by worm gears, and are mounted in bearings (33), Figs. 2, 3 (not shown), which are transversely movable by eccentric pins (46) to effect adjustment of the peripheral or skew register of the plates. Adjustment of the axial register of the plates may be provided for (not shown).
Patent GB-1014721-A (GB)
Title: Improvements in or relating to terrace houses
IPC: E04H1/02
Filed: 1962-06-07
Abstract: 1,014,721. Prefabricated buildings. C. VAN DER LELY N.V. June 7, 1962 [July 4, 1961 ], No. 22166/62. Heading E1A. In a row of terrace houses arranged in staggered relationship as shown, each house is made up from prefabricated room units and is provided with a shed and/or garage unit having a wall common with part of the back wall of the house. For architectural lay-out of the houses the Specification should be referred to.
Patent GB-193434-A (GB)
Title: Improvements in and relating to differentially acting electroresponsive apparatus
IPC: H01H47/14
Filed: 1921-08-22
Abstract: 193,434. British Thomson - Houston Co., Ltd., and Fitzgerald, A. S. Aug. 22, 1921. Protective arrangements.-In an alternating current protective arrangement, a static transformer is employed having primary and secondary windings and also a third or restraining winding not inductively related to the primary and secondary windings, but adapted to receive current which regulates the flux set up by the primary winding and interlinked with the secondary, so controlling the induced secondary current which passes through a relay. In the form shown in Fig. 1, the primary and secondary windings 2, 3 are wound on the inner limb of the core 1, two sections of the restraining winding 4 being wound on the outer limbs. The flux produced by the current in the coil 4 follows the dotted path, and although not being interlinked with the primary or secondary windings, yet by saturating or partially saturating the magnetic circuit of these windings regulates the effective primary flux, cutting the secondary turns. In Fig. 4 the restraining winding is on the inner limb, which is provided with an air gap, the divided primary and secondary windings being arranged so that the electromotive forces in their sections produced by current in the restraining winding 4 are equal and opposing. As applied to the protection of an electric circuit or winding 8, the circulating current provided by series transformers 9, 10 passes through the restraining winding 4, the primary winding 1 being connected between equipotential points as shown, and the secondary winding supplying a relay 7. In a further alternative, Fig. 3, two cores are employed and two restraining windings 4, 5 arranged so as to be non- inductive with each other and with the primary and secondary windings 2, 3. This arrangement may be used with the system shown in Fig. 2 of Specification 188,001, the restraining windings being supplied by line fault currents and earth fault currents.